impurity band

[im′pyu̇r·əd·ē ‚band]

(solid-state physics)

The impurity levels in a semiconductor, occupying a certain range of energies.

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The transition from trap to trap is made possible only if the destination site is vacant; the hop itself does not involve the concept of band energy, with the exception of impurity band conduction [2].

Effect of the separation of Coulomb centers on the activation energy in electronic hopping transport: a reinterpretation in poly-N-vinylcarbazole

The company has developed blocked impurity band (Bib) detectors that are better at VLWlR, but notes that spectral response is not easily tailored to the needs of a two-colour FPA.

Maintaining the night vision advantage

With the insertion of C's, impurity bands can be produced within the PBG of the original PC, air/[(AB).

With the PBG in Figure 1, we are now in a position to engineer it to realizing an MTF by adding the defect or impurity bands.

A multichanneled filter in a photonic crystal containing coupled defects

The sample KBr pellet was run against the spectrum of a blank KBr pellet to cancel the impurity bands.

Properties of nanostructured hydroxyapatite prepared by a spray drying technique

KBr sample pellets were run versus a blank KBr pellet in the reference beam to cancel KBr impurity bands, mainly [H.

KBr has no bands or impurity bands in the investigated regions.

Preparation and comprehensive characterization of a calcium hydroxyapatite reference material

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